(19)

(11)

EP 3 063 364 A1

(12)

(43) Date of publication: 07.09.2016 Bulletin 2016/36 (21) Application number: 14857171.4 (22) Date of filing: 15.10.2014

(51) International Patent Classification (IPC):  E21B 34/10(2006.01) E21B 34/14(2006.01) E21B 34/12(2006.01) E21B 31/00(2006.01) (86) International application number: PCT/NO2014/050195 (87) International publication number: WO 2015/065196 (07.05.2015 Gazette 2015/18)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 30.10.2013 NO 20131434 (71) Applicant: Wellbore AS 4056 Tananger (NO)	(72) Inventor: EVERTSEN, Steffen N-4015 Stavanger (NO) (74) Representative: O'Hagan, Paul et al Lincoln IP 9 Victoria Street Aberdeen AB10 1XB Aberdeen AB10 1XB (GB)